Yadav, Santosh Kumar Jung, Yong Chae Yang, Cheol-Min Ko, Yong-Il Yang, Kap-Seung Kim, Yoong Ahm Cho, Jae Whan 2024-01-20T10:30:32Z 2024-01-20T10:30:32Z 2021-09-04 2014-03 2046-2069 https://pubs.kist.re.kr/handle/201004/127062 Water-soluble, highly functionalized multiwalled carbon nanotubes (MWNTs) were prepared via a facile, environmentally benign method. The effectiveness of the highly functionalized MWNTs as a reinforcing filler in a water-soluble mechanically weak chitosan biopolymer was evaluated. We observed a substantial improvement in the mechanical properties of the film; the stretchability of the film was maintained when 5 wt% MWNTs was added. In addition, the biocomposite film exhibited long-term antibacterial activity. The reinforcing effect can be explained by the homogeneous dispersion of the nanotubes in the polymer matrix through the strong hydrogen bonding between the sulfonic acid groups (-SO3H) on the sidewalls of the MWNTs and the amine (-NH2) and hydroxyl (-OH) groups on the chitosan backbone. The improvement in the mechanical properties of the MWNT-chitosan biocomposite may make it suitable for many environmental and clinical applications. English ROYAL SOC CHEMISTRY CHITOSAN-TPP NANOPARTICLES GRAPHENE BIOCOMPATIBILITY NANOCOMPOSITES COMPOSITES WATER SIZE PH An environmentally friendly approach to functionalizing carbon nanotubes for fabricating a strong biocomposite Film Article 10.1039/c3ra47074a 1 RSC ADVANCES, v.4, no.11, pp.5382 - 5388 RSC ADVANCES 4 11 5382 5388 scie scopus 000329579900015 2-s2.0-84892187489 Chemistry, Multidisciplinary Chemistry Article CHITOSAN-TPP NANOPARTICLES GRAPHENE BIOCOMPATIBILITY NANOCOMPOSITES COMPOSITES WATER SIZE PH CNT biocomposite chitosan